236 Miscellaneous Intelligence. 



J. M. Schaeberle: The horizontal flexure of a meridian circle. 



Alex. Macfarlane: The logical theorems required in elementary geometry. 

 The logical form of geometrical theorems. 



J. A. Brashear: A new form of comet seeker. Method of preventing break- 

 age in the polarizing helioscope. Standard dimensions in astronomical and physi- 

 cal instruments. 



F. H. Bigelow : The phenomena of solar vortices. 



Lewis Boss: A list of stars with large proper motions. 



Henry M. Parkhurst: Photometric observation of asteroids. 



J. Burettt "Webb : Moment of inertia. 



PL S. '"Woodward : Method of computing the secular contraction of the earth. 



Orjiond Stone : The orbit of Hyperion. 



T. 0. Mexdenhall : The eccentricities of guessing. 



Section B. — Physics. 



L. E. Blake : A method of telephonic communication between ships at sea. 



J. J. Skinner : A method of comparing galvanometer coils. 



A. A. Michelson and E. W. Morley: A method for making the wave length 

 of sodium light the actual and practical standard of length. The relative velocity 

 of the earth and the luminiferous ether. 



¥m. A. Rogers : Determination of the invariability of the coefficients of ex- 

 pansion of Bailey's metal, of Jessup's steel, and of Chance & Sons' glass, between 

 the limits of — 3 & and + 97° F. Description of a combined chronograph and weight 

 motor. A method of obtaining the constant of gravity from the comparison of 

 musical notes. Time of exposure and mass considered as functions of the rate of 

 saturation of heat in the case of mercury and water. The definition of the Ohm 



by the equation R=K- Determination of the coefficient of expansion of the 



glass plates used for stellar photography at Cordoba in the years 1872-1875 and 

 1879-1883. A study of thirty-two mercurial thermometers under variations of 

 temperature between — 25^ F. and +95° F. 



E. E. Ries : The electric current as a means of increasing the tractive adhesion 

 of railway motors and other rolling contacts. 



A. Macfarlane : dotation for physical units. 



C. Leo Mees: Experimental determinations of minimum wind- velocity in Wash- 

 ington, 0., tornado. 



H. S. Carhart: The simultaneous measurement of the speed of an engine and 

 dynamo by electric means. 



T. C. Mendenhall and A. L. McRae : The electrical condition of the atmos- 

 phere in fair weather and during thunderstorms. 



D. B. Brace : A method of examining magnetic double circular refraction. 

 The transparency of the ether and its possible viscosity. 



W. M. Dayis : A classification of the winds. 



W. F. Magie : Measurement of surface tension of liquids. 



Wii. Thomson : Color blindness of railway employees. 



DeVolson Wood: Gravitation ether. Second law of thermodynamics. 



C. E. Monroe: Certain phenomena produced by the explosion of gun cotton 

 on metallic plates. 



A. B. Johnson: The difficulty of determining the direction of the source of 

 sound of fog signals at sea. 



J. Burkitt Webb : A new dynamometer (with working model). Experimental 

 determination of the reaction of a liquid jet. Experiments on the viscosity of 

 oil. A new viscosimeter. 



E. L. Nichols and W. S. Franklin: The electromotive force of magnetization. 

 H. E. Alyord: Influence of topography upon rainfall; from observations on 



Houghton Farm during 1884. 



M. A. Veder: Is terrestrial magnetism concerned in atmospheric movements? 



T. A. Edison : The pyromagnetic dynamo : a machine for producing electricity 

 directly from fuel. A magnetic bridge or balance for measuring magnetic con- 

 ductivity. 



